Plant Anatomy and Physiology MCQs with Answers 2027

Q541

Match List-I with List-II and select the correct answer:

List-I	List-II
a. Rate of respiration	1. Auxanometer
b. Rate of growth of plant	2. Respirometer
c. Size of stomata	3. Hellio tropic chamber
d. Demonstrate phototropism	4. Poromoter

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Q542

Open question

In castor and several other related plants a fleshy whitish tissue is formed at one end of the seed. This is called the

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Q543

Open question

The by-product of photosynthesis is

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Q544

Open question

In which of the following families, the endosperm forms both micropylar and chalazal haustoria?

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Q545

Open question

The germination process, whereby the cotyledons emerge above ground with the growing tip due to the elongation of hypocotyl and the formation of hypocotyl hook is known as

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Q546

Open question

A known inhibitor of gibberellin biosynthesis, used extensively by the green house floriculture industry to retard the growth of such plants as chrysanthemums and poinsettias is known as

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Q547

Open question

Plants grown which of the following places take up carbon dioxide during the night?

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Q548

Open question

Which of the following plants is an example of a carcerule where the fruit is produced from a bicarpellary, syncarpous, tetralocular and superior ovary?

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Q549

Open question

Biosynthetic phase is called as dark reaction because

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Q550

Open question

During early stages of microsporogenesis, the microspore mother cells or microsporocytes are closely packed and are interconnected by

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Q551

Open question

The tetraploid secondary nucleus after fertilization by a male gamete produces a pentaploid endosperm in which of the following plants?

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Q552

Open question

In some plants, the flower is modified in such a way that it looks like a female insect and attracts male insect. This modification is used for the pollination and occurs commonly in

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Q553

Open question

The boundary layer of air over the green leaves with active microbes is known as

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Q554

Open question

Consider the following statements and choose the correct answer:
1. Intense or strong light retards the growth of shoot
2. Shade plants are shorter and stockier than sun plants
3. Shade plants have dense covering of hairs while sun plants are less hairy
4. The stems of shade plants are taIler and more branched than that of sun plants

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Q555

Open question

Consider the following statements regarding the vegetation of Rajasthan desert and choose the correct answer:
1. Sand community occupies a large area of Jaisalmer and near about areas
2. Gravel association at Bap to Jaisalmer consists of Boerhhavia diffusa, Cleome papillosa, Fagonia eratea, Aristidia mutabilis etc.
3. Except small isolated hills, the greater portions of Jaisalmer and Jodhpur of Rajasthan are covered by rocks
4. The common shrubs occurring in the sand, gravel and rock communities are Euphorbia nerifolia, some species of twining shrubs like species of Convolvulus, Sarcostemma etc.

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Q556

Open question

The oxidative decarboxylation of pyruvic acid to form acetyl coenzyme A requires the presence of essential cofactors which include

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Q557

Open question

Which of the following are climbing woody perennials, which grow upward until their leaves form a part of the forest canopy and become well exposed to the light?

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Q558

Open question

The tendency among animals to concentrate in numbers larger than found in normal distribution, and which congregate under various circumstances mostly by their own movements is known as

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Q559

Open question

The final steady state or stage in a succession is known as

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Q560

Open question

Gaseous exchange takes place in leaves through tiny pores for the purpose of photosynthesis. What are these pores?

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